What is the cheapest month to book a flight from Idaho to Cardiff?

Currently, February is the cheapest month in which you can book a flight from Idaho to Cardiff (average of $773). Flying from Idaho to Cardiff in June is currently the most expensive (average of $1,622). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

In terms of precipitation, rainfall in Cardiff ranges from 2.0 - 3.5 inches per month. January is typically the wettest month, when rainfall can reach 3.5 in. April is typically the driest time to visit Cardiff when rainfall is around 2.0 in.

If weather is an important factor for your trip to Cardiff, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 64.4 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 39.2 F).

What is the cheapest time of day to fly from ID to CWL?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Idaho to Cardiff as you normally would.

What airport do you fly into for flights to Cardiff from Idaho?

If you book a flight to Cardiff from Idaho, you will be flying to Cardiff Wales, which is the city’s only airport. Cardiff Wales (CWL) is located 9.1 mi from the center of Cardiff.

Can I find deals for flights from Idaho to Cardiff that include hotel bookings?

Yes. In addition to deals on Idaho to Cardiff flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Idaho to Cardiff?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Idaho to Cardiff.

Can I find deals for business class flights from Idaho to Cardiff?

Yes. Cheapflights offers flight deals from Idaho to Cardiff by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$959+ Flights from Idaho to Cardiff

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Cheap flight deals from Idaho to Cardiff

Round-trip from	$958 (KLM)

From Idaho to Cardiff Wales

Search Deals

Find flight deals from Idaho to Cardiff

Cheapest flights from Idaho to Cardiff
Explore the most affordable flight options available from Idaho to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

Mon 11/1010:38 amBOI - CWL

2 stops23h 17mKLM

Wed 11/195:25 pmCWL - BOI

2 stops30h 27mKLM

Deal found 7/30

$959

Wed 12/31:43 pmBOI - CWL

2 stops20h 12mVirgin Atlantic

Sun 12/710:20 amCWL - BOI

2 stops43h 44mVirgin Atlantic

Deal found 7/30

$1,059

Wed 12/35:40 amBOI - CWL

2 stops45h 10mDelta

Sun 12/710:20 amCWL - BOI

2 stops37h 09mDelta

Deal found 7/28

$1,061

Best flights from Idaho to Cardiff
Discover carefully curated flight deals from Idaho to Cardiff that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 31, 2025.

Fri 8/155:30 amBOI - CWL

2 stops20h 45mDelta

Tue 8/199:50 amCWL - BOI

2 stops21h 06mDelta

Deal found 7/28

$1,181

Last-minute flights from Idaho to Cardiff
Discover last-minute flight deals from Idaho to Cardiff. Data last updated July 31, 2025 and is based on user searches.

Fri 8/155:30 amBOI - CWL

2 stops20h 45mDelta

Tue 8/199:50 amCWL - BOI

2 stops21h 06mDelta

Deal found 7/28

$1,181

Fly from

Fly to

Route

Depart

Return

Price

BoiseCardiff

BOI - CWL

BOICWL

Boise Air Term. Gowen Fld

Fri 8/15

5:30 am-9:15 am

2 stops20h 45m

Cardiff Wales

Tue 8/19

9:50 am-11:56 pm

2 stops21h 06m

$1,181

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Best time to book a flight from Idaho to Cardiff

Have a flexible travel schedule? Discover the best time to fly to Cardiff from Idaho with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Idaho to Cardiff

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Cardiff

Peruse reviews from past customers who have flown with Delta, KLM, and Virgin Atlantic from Idaho to Cardiff to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,981 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,981 reviews

Delta

8.0

Very good

7,981 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

KLM

7.8

Good

1,383 reviews

Delta

8.0

Very good

7,981 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Virgin Atlantic

7.4

Good

655 reviews

Delta

8.0

Very good

7,981 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

What airport do you fly into for flights to Cardiff from Idaho?
If you book a flight to Cardiff from Idaho, you will be flying to Cardiff Wales, which is the city’s only airport. Cardiff Wales (CWL) is located 9.1 mi from the center of Cardiff.
Can I find deals for flights from Idaho to Cardiff that include hotel bookings?
Yes. In addition to deals on Idaho to Cardiff flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Idaho to Cardiff?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Idaho to Cardiff.
Can I find deals for business class flights from Idaho to Cardiff?
Yes. Cheapflights offers flight deals from Idaho to Cardiff by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Idaho to Cardiff?
Currently, February is the cheapest month in which you can book a flight from Idaho to Cardiff (average of $773). Flying from Idaho to Cardiff in June is currently the most expensive (average of $1,622). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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$959+ Cheap flights from Idaho to Cardiff (CWL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/10. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Idaho to Cardiff with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Idaho to Cardiff

Keep the following information in mind while searching for Idaho to Cardiff flight deals. Data was last updated July 31, 2025.

Round-trip from

Find flight deals from Idaho to Cardiff

Cheapest flights from Idaho to CardiffExplore the most affordable flight options available from Idaho to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

Explore the most affordable flight options available from Idaho to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Idaho to Cardiff that are best for you.

Best time to book a flight from Idaho to Cardiff

Have a flexible travel schedule? Discover the best time to fly to Cardiff from Idaho with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Idaho to Cardiff

Reviews of airlines servicing Cardiff

Peruse reviews from past customers who have flown with Delta, KLM, and Virgin Atlantic from Idaho to Cardiff to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Idaho to Cardiff. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Cardiff from Idaho?

Can I find deals for flights from Idaho to Cardiff that include hotel bookings?

How can I find direct flights from Idaho to Cardiff?

Can I find deals for business class flights from Idaho to Cardiff?

What is the cheapest month to book a flight from Idaho to Cardiff?

Traveling to a place near Cardiff?

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Alternative routes for Idaho to Cardiff

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Cheapest flights from Idaho to Cardiff
Explore the most affordable flight options available from Idaho to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.